1ab612616c2d9a7879e56837f8d5181c0c646a5fb6bdd2fd2cbd1d70f951748b

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
18-08-2024 04:00

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General

Target

a54df3568caf7a85a9251523e6bf583f_JaffaCakes118.dll
Size

224KB
MD5

a54df3568caf7a85a9251523e6bf583f
SHA1

7fe6eec87b68de8c54ba83fb4ababe6be9c6d824
SHA256

1ab612616c2d9a7879e56837f8d5181c0c646a5fb6bdd2fd2cbd1d70f951748b
SHA512

f0e88c5aab060fe901b1559f0f530448e0cf34fb45d347c59a7938baea6a58c3e45360b656721a7434b82cac94a7e4b458a76b3037617485373c259b879b5ae4
SSDEEP

6144:lwx/C2G6SDG6dphYB365sryrXlsnarQCbaI:lwHG6SD/ac5sruXea0

Score

7^/10

adware discovery stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1892-0-0x0000000002220000-0x00000000022B8000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{CC01FC6C-64EB-263B-3AA8-5291E87AE28E}	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-64EB-263B-3AA8-5291E87AE28E}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-64EB-263B-3AA8-5291E87AE28E}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-64EB-263B-3AA8-5291E87AE28E}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-64EB-263B-3AA8-5291E87AE28E}\ = "sb"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-64EB-263B-3AA8-5291E87AE28E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a54df3568caf7a85a9251523e6bf583f_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\a54df3568caf7a85a9251523e6bf583f_JaffaCakes118.sb\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\a54df3568caf7a85a9251523e6bf583f_JaffaCakes118.sb\Clsid\ = "{CC01FC6C-64EB-263B-3AA8-5291E87AE28E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-64EB-263B-3AA8-5291E87AE28E}\ProgID\ = "a54df3568caf7a85a9251523e6bf583f_JaffaCakes118.sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-64EB-263B-3AA8-5291E87AE28E}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\a54df3568caf7a85a9251523e6bf583f_JaffaCakes118.sb	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\a54df3568caf7a85a9251523e6bf583f_JaffaCakes118.sb\ = "sb"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 1892	2352	regsvr32.exe	31
PID 2352 wrote to memory of 1892	2352	regsvr32.exe	31
PID 2352 wrote to memory of 1892	2352	regsvr32.exe	31
PID 2352 wrote to memory of 1892	2352	regsvr32.exe	31
PID 2352 wrote to memory of 1892	2352	regsvr32.exe	31
PID 2352 wrote to memory of 1892	2352	regsvr32.exe	31
PID 2352 wrote to memory of 1892	2352	regsvr32.exe	31

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a54df3568caf7a85a9251523e6bf583f_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\a54df3568caf7a85a9251523e6bf583f_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1892-0-0x0000000002220000-0x00000000022B8000-memory.dmp

Filesize
608KB

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